TEB   Computer  Kids   Academy

the unique features of the Small Basic language

The Small Basic language consists of just 14 keywords.
Of the 14 keywords, we'll cover 16 of them in this blog post:

And
Else
ElseIf
EndFor
EndIf
EndSub
EndWhile
For
Goto
If
Or
Step
Sub
Then
To
While




If, Then, EndIf

If (Clock.Hour < 12) Then
  TextWindow.WriteLine("Good Morning World")
EndIf

Else
We can shorten two if..then..endif statements to be just one by using a new word, else.
If we were to rewrite that program using else, this is how it will look:

If (Clock.Hour < 12) Then
TextWindow.WriteLine("Good Morning World")
Else TextWindow.WriteLine("Good Evening World")
EndIf

Goto
If (i < 25) Then
Goto start
EndIf

For, To, EndFor For..EndFor is, in programming terms, called a loop. 
It allows you to take a variable, give it an
initial and an end value and let the computer increment the variable for you. 
Every time the computer increments the variable, it runs the statements between

For and EndFor.

This program prints out numbers from 1 to 24 in order: 
For i = 1 To 24
TextWindow.WriteLine(i)
EndFor

Step
But if you wanted the variable to be incremented by 2 instead of 1
(like say, you wanted to print out all the odd numbers between 1 and 24),
you can use the loop to do that too.
For i = 1 To 24 Step 2
TextWindow.WriteLine(i)
EndFor

While, EndWhile

The While loop is yet another looping method, that is useful especially
when the loop count is not known ahead of time. 
Whereas a For loop runs for a pre-defined number of times,
the While loop runs until a given condition is true.
In the example below, we’re halving a number until the result is greater than 1.

number = 100
While (number > 1)
TextWindow.WriteLine(number) number = number / 2
EndWhile

Sub, EndSub
A subroutine is a portion of code within a larger program
that usually does something very specific,
and that can be called from anywhere in the program. 
Subroutines are identified by a name that follows the Sub keyword and are terminated by the
EndSub keyword. 
Below is a program that includes the subroutine and calls it from various places.
PrintTime()
TextWindow.Write("Enter your name: ")
name = TextWindow.Read()
TextWindow.Write(name + ", the time now is: ")
PrintTime()
  Sub PrintTime
TextWindow.WriteLine(Clock.Time)
EndSub

And, ElseIf
  If  percentage >= 75 Then
    TextWindow.WriteLine("The student’s grade is A.")
  ElseIf  percentage < 75 And percentage >= 60  Then
    TextWindow.WriteLine("The student’s grade is B.")
  ElseIf  percentage < 60 And percentage >= 35 Then
    TextWindow.WriteLine("The student’s grade is C.")
  Else
    TextWindow.WriteLine("The student’s grade is D.")
  EndIf

Or 
Sub subRainyCount
    If Rainy = "y" Or Rainy = "Y" Then
       RainyCount = RainyCount + 1
    EndIf
EndSub